Water quality in Dunbarton, New Hampshire
Dunbarton is in Merrimack County. 246 active public water systems serve the county; 80 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Merrimack County
62 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Bella Brook Water Bow |
50 | 0 | 2.0 mi | |
| Abenaki Water/white Rock Water Bow |
238 | 0 | 3.6 mi | |
| Stone Sled Farm Bow |
113 | 0 | 4.5 mi | |
| White Rock Senior Living Bow |
120 | 0 | 4.6 mi | |
| Cottages at Windchimes Bow |
75 | 0 | 4.8 mi | |
| Hopkinton Village Pct Hopkinton |
215 | 1 | 5.2 mi | |
| Elm Brook Village Hopkinton |
90 | 0 | 6.7 mi | |
| Bow Municipal Water System Bow |
150 | 0 | 6.9 mi | |
| Wesco Utilities Hooksett |
210 | 0 | 7.4 mi | |
| Meeting House Water Pembroke |
35 | 1 | 7.5 mi | |
| Concord Water Dept Concord |
44,215 | 0 | 7.8 mi | |
| Hooksett Village Water Pct Hooksett |
3,000 | 0 | 8.6 mi | |
| Pembroke Water Works Pembroke |
5,200 | 0 | 8.7 mi | |
| The Meadows Hopkinton |
200 | 0 | 9.2 mi | |
| Contoocook Village Pct Hopkinton |
1,600 | 3 | 9.2 mi | |
| Liberty Ridge MHP Henniker |
91 | 0 | 9.2 mi | |
| Borough RD Apartments Pembroke |
30 | 0 | 9.2 mi | |
| Deer Meadows Hopkinton |
150 | 2 | 9.3 mi | |
| Bear View Crossing Allenstown |
800 | 0 | 9.7 mi | |
| Pleasant Pond Coop and Cmpgrnd Warner |
218 | 0 | 10.3 mi | |
| Central Hooksett Water Pct Hooksett |
4,650 | 0 | 10.4 mi | |
| Cogswell Springs Water Works Henniker |
3,000 | 0 | 10.8 mi | |
| Pillsbury Lake/franklin Pierce Webster |
75 | 2 | 11.0 mi | |
| Catamount Hill Allenstown |
383 | 1 | 11.2 mi | |
| Pillsbury Lake/peninsula Webster |
90 | 0 | 11.6 mi |
Non-community systems in Merrimack County (183: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Merrimack County, nearest to Dunbarton first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision files or the centre of the first town EPA lists the system as serving, from Census Bureau place files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The New Hampshire records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.